Can top cover



FIG. 1 is a left side elevation view of a can top cover showing our new design;

FIG. 2 is a right side elevation view of the can top cover of FIG. 1;

FIG. 3 is a top view of the can top cover of FIG. 1;

FIG. 4 is a bottom view of the can top cover of FIG. 1;

FIG. 5 is a rear elevation view of the can top cover of FIG. 1;

FIG. 6 is a front elevation view of the can top cover of FIG. 1;

FIG. 7 is an enlarged bottom-left perspective view of the can top cover of FIG. 1; and,

FIG. 8 is an enlarged top-right perspective view of the can top cover of FIG. 1. 

CLAIM The ornamental design for a can top cover, as shown and described above. 